Fountain pen



March 24, 1931. A. L.. DE BlAsl FOUNTAIN PEN Filed March 26. 1929Patented Mar. 24, 1931 UNITED STATES ANTHONY L. DE IBIASI, F RICHMOND,VIRGINIA FOUNTAIN PEN Application led March 26, 1929.

The invention relates to improvements in fountain pens.

The object of the present invention is to improve the construction offountain pens and to provide a simple, practical and eiiicient fountainpen of strong, durable, and comparatively inexpensive constructionequipped with means for holding three different kinds of inks, such asred, green and blue, and capable of ready adjustment to enable a writerto use any one of the three inks.

A further obj ect of the invention is to provide a fountainpen of thischaracter in which there will be no liability of the links accidentallymixing, or the ink of two of the reservoirs leaking` while the otherreservoir or ink container is feeding ink to the pen point.

With these and other objects in view, the

invention consists in the construction and novel combination andarrangement of parts hereinafter described, illustrated in theaccompanying drawings, and set forth in the claims hereto appended, itbeing understood that various changes in the form, proportion, and minordetails of construction, within the scope of the claims, may be resortedto without departing from the spirit of the invention or sacrificing anyof the advantages thereof.

In the drawings: Fig. 1 is a longitudinal sectional View of a fountainpen constructed in accordance with this invention.

Fig. 2 is an elevation of the front portion of the same, the cap beingremoved.

Fig. 3 is a detail sectional view taken substantially on the line 3-3 ofFig. 1.

Fig. 4 is an enlarged transverse sectional view taken substantially onthe line 4-4 of Fig. 2.

Fig. 5 is an end view of the resilient tube compressing members.

Fig. 6 is an end view of the barrel and the plug member, the ink feedinghead being removed.

In the accompanying drawings, in which is illustrated the preferredembodiment of the invention, the fountain pen comprises in itsconstruction a barrel 1 designed to be con1 Serial No. 350,088.

structed of hard rubber or any other suitable material and provided atits inner or rear end with a wall 2 which closes one end of the barrel,and the other end of the barrel is interiorly threaded at 3 to receive aplug 4. The plug 4, which may7 be constructed of hard rubber or anyother suitable material, is substantially cylindrical and it 'has at itsinner end a circumferential reduction which is threaded to screw intothe open threaded end of the barrel and which also forms a shoulder forabutting against the end of the barrel, as clearly illustrated in Fig. 1of the drawing.

The intermediate portion 6 of the closure plug is threaded to receivethe interiorly threaded end 7 of a cap 8 which is of slightly greaterdiameter than the barrel, to fit over the closed end of the same whenthe cap is removed from the plug 4 for exposing for use a pen point 9which is carried by an-ink feeding head 10.

T he plug member 4 is provided with longitudinally disposed radiallyarranged partitions 11 which may be constructed of hard rubber or anyother suitable material and may be formed integral with the closure plug4, as illustrated in the accompanying drawings, or constructed in anyother desired manner. The radially arranged partitions 11 eX- tend fromthe center of the barrel to the inner face of the wall thereof anddivide the barrel into three similar compartments 12 for the receptionof ink receiving tubes 13 designed to be constructed of soft rubber orother suitable material and preferably substantially semi-cylindrical orsegmental in cross section when inflated, as illustrated in Fig. 3 ofthe drawing. These tubes are closed at their inner or rear ends and areprovided at their outer or front ends with cylindrical necks 14, whichare fitted on nipples 15 formed integral with the plug member 4 andconstituting eX- tensions of ink ducts 16 through which the ink passesto the ink feeding head 10.

The tubes 13 are adapted to be removed with the plug member as a unitand are readily insertible in the barrel, and they are adapted to becompressed for either emptyv ing the ink from the tubes or :forexpelling the air to re-ill the fountain pen by means of levers 17fulcrumed intermediate of their ends at 18 in slots 19 of the barrel andadapted to engage resilient members 2O ext-ending longitudinally of thecompartments 12 and preferably consisting of 'dat springs connectedtogether by radially arranged arms 21 formed integral with one anotherand located at the inner or rear end of the partitions and preferablysecured to the same by a centrally arranged screw 22 or other suitablefastening device'. The le'ver's'17 are provided with projecting portions23 forming lips which overlap the barrel at the rear ends of the slotsand are adapted to be'readily engaged by the nnger for operating thelevers 17 in the 'usual manner.` The springs 2O and the connecting armsare. adapted to form a cage for thecompressible ink reservoir tubes andenable the plug member and the reservoir tubes to be removed as a unitwithout liability of the tubes becoming accidentally disconnected fromthefnip'ples of the plug member'. lVhen it is desired to nll thefountainpen, the tube 13 is compressed by the lever 17, and the fountain penAisimmersed in the ink while 'the tube is compressed, after which thetube is permitted to expand and suck in the ink in the usual manner.

The plug member is provided with a tapered front portion 24 circular incross section and forming a journal or bearing forthe feeding head 10,which is provided at its inner endwith a. tapering socket 25 which fitsthe tapered front portion of the plug member.

The ink feeding head, which is journalled onf the plug member, istapered outwardly and is provided with a single ink passage or duct 26which is adapted through the rotary movement of the feeding head to bearranged in register for permitting the ink to flow from a' reservoir ofthe barrel to the pen point 9, which is supported by the projectingfront portion 27 of the feeding head. The projectingfront portionextends to the nibs of the pen point and is adapted to support the penpoint and feed ink to the same in the ordinary manner.

The'rotary feeding head 10'is detac-hably secured on the tapered frontjournal portion of the plug member by a transversely disposed slidablevlatch member 28 which engages a headed shank 29 forming a keeper, andpreferably consisting of a screw centrally mounted in the front end ofthe plug member and projectingtherefrom a suflicient distance to enablethe head of the shank or stem 28 to extend into a central circularopening 30 in the transverse wall of the bearing socket of the inkfeeding head 10. The central circular opening or bore 30 of the inkfeeding head intersects a transverse slot 31 'in which the latch Imember28 operates, and the outer end 82o'f'th`e sloty 31 is enlarged toreceive an angularly bent portion or lug 33 of the latch member. Theouter end of the latch member 28 is bent at an angle to form a lug whichserves as a finger piece for enabling the latch member 28 to be drawnupwardly out of engagement with the headed stem 28 when it is desired toremove the feeding head from the plug member. Any simple means may beemployed for limiting the movement of the slidable latch member, ifdesired, and a suitable packing member may also be employed, if desired,at the abutting faces of the feeding head and the plug member to preventleakage of the ink, but the tapered ournal portion of the plug memberand the tapered socket will form a tight connection at the periph-ery ofthe plug member and the abutting transverse faces of the two members areadapted to form an air-tight joint.

-he plug member is provided with suitable indicating marks 3K1, and therotary ink fcedinghead is provided with an arrow 35 or other indicatingmark corresponding with thc duct 26 and enabling the operator to turnthe feeding head to brino' the ink passage thereof into register witnany of the ink ducts of the plug member. VVhen the arrow 35 of therotary head is in linewith one of the marks 34 of the plug member, theduct 26 of the head 10 is in register with one of the ducts 16 of theplug member.

`What is claimed is:

1. A fountain pen comprising a barrel, a `plug member mounted on one endof the barrel and provided with a plurality of ducts and having atapered front ournal'portion, an ink feeding head provided at its innerend with a. tapered bearing recess fitted on the tapered journal portionof the plug member and adapted to be rotated to carry a duct of thefeeding head into register with the ducts of the plug member, a headedshank projecting centrally from the front of theplugmevmber andextending into the'ink feeding head, and aslidable latch member mountedon the ink feeding head and providedA with a bifurcated inner endstraddling the stem and engaging the head thereof for retaining the headon the plug member without interfering with the rotary movement of thehead` 2. A fountain pen comprising a. barrel, a lug mounted on one endof the barrel and rovided with a plurality of ducts` and having afrontfjournal portion, an inkfeeding head provided at its inner end witha bearing recess fitting the journal portion of the plug member andadapted to be rotated to carry a duct of the feedinghead into registerwith the ducts of the plug member, and means for detachably retainingthe feeding head on the journal portion of the plug member including afixed projection extending centrally from the plug member, and a latchmember movably mounted on the feeding head to engage and disengage thecentral fixed projection of the plug member.

3. A fountain pen comprising a barrel, a plug member mounted on thebarrel, a feeding head rotatably mounted on the plug member, radiallyarranged partitions eX- tending fromvand carried by the plug member anddividing the barrel into separate compartments, init sacks located inthe said compartments and mounted on and carried by the plug member andthe partitions, and resilient members mounted on the partitions andarranged at the outer sides of the ink sacks adjacent to the same andretaining the ink sacks in position to enable the plug, partitions andink sacks to be removed as a unit from the barrel.

4. A fountain pen comprising a barrel, a i

plug member mounted on the barrel and provided with a plurality ofducts, a feeding head carried by the plug member and having a singleduct adapted to register With the duets of the plug member, and radiallyarranged longitudinal partitions rigid with and carried by the plugmember for dividing the barrel into separate compartments, ink sacksmounted on the plug member and located Within the compartments betweenthe partitions, and a cage mounted on the partitions and composed ofresilient longitudinally disposed members located at the outer sides ofthe ink sacks and having transverse arms connecting the members with thepartitions.

5. A fountain pen comprising a barrel, a plug member mounted on thebarrel and having a plurality of ducts, a feeding head mounted forrotary movement on the plug member and provided with a single ductadapted to be carried into communication with the ducts of the plugmember by the rotary movement of the feeding head, a plurality oflongitudinal partitions extending from and carried by the plug memberand dividing the barrel into a plurality of compartments, ink sacksconnected With the duets of the plug member and arranged in the saidcompartments, and resilient members extending from the inner ends of thepartitions along the outer sides of the sacks and retaining the inksacks between the partitions to permit the plug member, partitions andink sacks to be removed from the barrel as a unit, said resilientmembers being also adapted to be forced laterally to compress the inksacks.

In testimony whereof I have hereunto set my hand this 25th day of March,1929.

ANTHONY L. DE BIASI.

